After recent events it appears the DEA plans on making kratom and nootropics schedule 1 drug. For those interested in drug tests for work, school, or probation (like me) here are the two possible half-lives depending how long you've used or how much. This comes from study in 2015 which suggests for a heavy/experienced user it takes around 23.24 hours and 7.17 hours for light user to eliminate 50% of kratom alkaloids.
I came across this on mentalhealthdaily.com here is the link:
http://mentalhealthdaily.com/2015/11/23/how-long-does-kratom-stay-in-your-system/
It also appears it's not a definite study as it was only around 10 males. I think it's safe to say depending on your age, body fat %, metabolism, etc is the biggest factor like any other drug.
I came across this on mentalhealthdaily.com here is the link:
http://mentalhealthdaily.com/2015/11/23/how-long-does-kratom-stay-in-your-system/
It also appears it's not a definite study as it was only around 10 males. I think it's safe to say depending on your age, body fat %, metabolism, etc is the biggest factor like any other drug.